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USB: phy-msm-qusb: Set ref_clk_src to NULL if clk_get fails

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Set ref_clk_src to NULL if clk_get() API fails to get handle
in probe(), else it results in invalid pointer derefernce.

Change-Id: I1ba5f64bc2a691923cbac1c7b4e9288b6071ff57
Signed-off-by: Vijayavardhan Vennapusa <vvreddy@codeaurora.org>
This commit is contained in:
Vijayavardhan Vennapusa 2020-12-03 17:53:02 +05:30
commit 5455109dc4
1 changed files with 3 additions and 1 deletions
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4
drivers/usb/phy/phy-msm-qusb.c
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@ -999,8 +999,10 @@ static int qusb_phy_probe(struct platform_device *pdev)
}
qphy->ref_clk_src = devm_clk_get(dev, "ref_clk_src");
if (IS_ERR(qphy->ref_clk_src))
if (IS_ERR(qphy->ref_clk_src)) {
qphy->ref_clk_src = NULL;
dev_dbg(dev, "clk get failed for ref_clk_src\n");
}
/* ref_clk is needed only for DIFF_CLK case, hence make it optional. */
if (of_property_match_string(pdev->dev.of_node,